/*
 * Copyright 2013-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.data.solr.core.query.result;

import java.util.Collections;
import java.util.List;

import org.springframework.data.solr.core.query.Field;
import org.springframework.util.Assert;

/**
 * The most trivial implementation of {@link FacetPivotFieldEntry}.
 * 
 * @author Francisco Spaeth
 * @author Christoph Strobl
 */
public class SimpleFacetPivotEntry extends FieldValueCountEntry implements FacetPivotFieldEntry {

	private List<FacetPivotFieldEntry> pivot = Collections.emptyList();

	public SimpleFacetPivotEntry(Field field, String value, long count) {
		super(value, count);
		this.setField(field);
	}

	@Override
	public List<FacetPivotFieldEntry> getPivot() {
		return pivot;
	}

	public void setPivot(List<FacetPivotFieldEntry> pivot) {

		Assert.notNull(pivot, "Pivot must not be null!");
		this.pivot = pivot;
	}

	@Override
	public String toString() {
		return "SimpleFacetPivotEntry [getField()=" + getField() + ", getValueCount()=" + getValueCount() + ", getValue()="
				+ getValue() + ", getPivot()=" + getPivot() + "]";
	}

}
